I have been coughing up tons of plugs today... Could plugs affect O2? And, is it a good thing or bad thing to be coughing them up? I feel a lot better when I get them out and am pretty much able to cough them out on my own with some good strong coughs. Not sure what this means... I've never coughed more than a plug or two occasionally, but over the last 24 hours its been nearly every time I cough. Thoughts??